• Dynamic Output Power(Per Channel,8Ω): 2X250W
  • Dynamic Output Power(Per Channel,4Ω): 2X400W
  • Dynamic Power(Bridge 8Ω): 1X 800W





aj4002 is a two-channel power amplifier with class AB circuit design elaborately
designed for the professional audio market. It's got a good name in the market with
its compact size, good reliability, and high-quality consistency. aj4002 is a good 
choice for bars, schools, conference rooms, aquariums, zoos, community activities,
and family gatherings. It can drive auxiliary speakers, monitor speakers, etc.


Unique Linear Limiter Protection Circuit (LXTM circuit)     
The protection value of the LXTM linear limiter protection circuit can reach 8V. It can track the
dynamics of temperature, power, and frequency in time and adjust the limiter strength 
automatically to ensure that the system always runs in a safe environment and ensures 
the dynamic effect of the entire audio system.

Unique and Efficient Crosstalk Shielding Design
When designing and selecting components in R & D stage, the anti-interference ability of the
circuit was fully considered. XA800 will not be interfered by peripheral electronic equipment, 
which effectively solves the headache of crosstalk.

Perfect Protection System
Limiter protection/ Soft-start protection/DC protection/Short-circuit protection/Overheat 
protection/Output overload protection


Dynamic Power (1 KHz, THD+N=1%)

2x 250W (8Ω stereo)

2 x400W (4Ω stereo)

1x 800W (8Ω bridge)

Rated Power (1 KHz, THD+N=0.1%)

2x 200W (8Ω stereo)

2 x300W (4Ω stereo)

1x 600W (8Ω bridge)

Total harmonic distortion 8Ω & 20Hz- 20kHzhalf power

≤ 0.1%

Slew rate

≥ 25 V/uS

Frequency response1W 8Ω stereo

20 Hz-20kHz ± 0.5dB



Damping1kHz &8Ω

≥ 300

Signal-to-noise ratio (A-weighted, rated

power 8Ω)

≥ 200dB

Crosstalk (1kHz, rated power 8Ω)

≥ 60 dB

Input impedance

Unbalanced 10kΩ, balanced


Output circuitry

Class AB


DC protection/short circuit protection/overheat protection/

output overload protection/soft

start protection

Dimension (WxHxD)

483 x44x363mm

Net weight


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